Frequently Asked Questions

Standard lead time is 7-15 days. Rush orders can be completed in 3-5 days. Monthly capacity is 5 million pieces, and most models have regular stock.

Sample orders have no MOQ — 1 piece minimum. Bulk order MOQ depends on the model: standard models 1,000 pcs minimum, custom models negotiable.

Yes. We provide 5 free samples. Shipping is collect. Business email or company information required for qualification. Samples come with complete test reports.

Yes. All three IG platforms support customization:

• Resistance range: 0.5Ω~20kΩ
• Power range: 3W~10W
• Lead length: Custom per customer drawing
• Custom samples: 7-10 days

Sample/small orders: DHL/FedEx/UPS international express (3-7 days). Bulk orders: Sea freight (15-25 days) or air freight (5-10 days). Payment: T/T (30% deposit + 70% balance), L/C, or PayPal for samples.

International: T/T (telegraphic transfer, 30% deposit + 70% balance), L/C (letter of credit). Long-term partners can apply for credit terms (net 30/60 days).

Yes. IG-C and IG-F series have AEC-Q200 Standard Grade certification. IG-S series has Full Grade certification (all tests). Third-party test reports available.

AEC-Q200 is the Automotive Electronics Council passive component stress test qualification standard. It is the entry requirement for automotive OE market components.

Passing AEC-Q200 means the resistor has undergone 20+ rigorous stress tests, including:

• High-temperature life test (125°C~155°C, 1000 hours)
• Temperature cycling (-55°C~+155°C, 1000 cycles)
• Humidity bias test (85°C/85%RH, 1000 hours)
• Vibration/shock test
• Solderability/heat resistance

Without certification, resistors may experience resistance drift, open circuits, or insulation failure in automotive environments. HXO IG-C/IG-F have Standard Grade, IG-S has Full Grade certification.

Products are AEC-Q200 certified. Factory quality management system complies with ISO 9001. COA (Certificate of Analysis), batch traceability codes, and RoHS/REACH compliance declarations available on request.

Under normal storage conditions (temperature -10°C~40°C, humidity ≤70%RH), shelf life is 2 years. Store in original packaging, avoid high temperature and humidity.

Simple selection:

• IG-C Ceramic Core: Best value, -55°C~+275°C, for most motorcycle and automotive applications
• IG-F Fiberglass Core: Highest vibration resistance, 30% better than ceramic, for off-road and single-cylinder engines
• IG-S Solid Ceramic: Flagship, -55°C~+350°C, 40kV pulse withstand, for racing and extreme environments

Our resistors cover mainstream motorcycle and automotive ignition coils:

• Motorcycles: Honda, Yamaha, Suzuki, Kawasaki, and Chinese brands (Zongshen, Loncin, Lifan, etc.)
• Automotive: Universal replacement parts, aftermarket
• Compatible resistance: Secondary 4.7kΩ~10kΩ, primary 0.5Ω~1.5Ω

All are secondary suppressor resistors, differing in EMI suppression strength:

• 4.7kΩ: Universal, moderate EMI suppression, least ignition energy loss
• 5kΩ~6.8kΩ: Most common range, balancing EMI suppression and ignition energy
• 10kΩ: Strong EMI suppression, for sensitive onboard electronics

Higher resistance = stronger EMI suppression but slightly more ignition energy loss. Most motorcycle applications recommend 4.7kΩ~5.1kΩ.

• Online selection consultation: Email/WhatsApp/phone, reply within 2 working hours
• Failure analysis: Send failed samples, free analysis with report
• On-site support: Engineer visits available for major accounts
• Training: Resistor selection training, AEC-Q200 standard解读

Three key points:

1. Confirm pin spacing and dimensions are compatible
2. Request samples for trial installation first
3. Leave 30% power margin for long-term reliability

HXO IG series has completed substitution validation for many imported models. Cross-reference table available.

Core differences are in supply chain and cost, not performance. Ignition coil suppressor resistors are not high-tech semiconductors — the technology lies in material formulation and process consistency.

• 💰 Price: Chinese brands 30-50% lower for equivalent performance
• ⏱️ Lead time: Imported brands 8-12 weeks, Chinese 7-15 days
• ✅ Certification: HXO IG series all AEC-Q200 certified, matching imported brands
• 🔧 Service: Free samples + selection guidance + failure analysis
• ⚙️ Customization: Non-standard values and lead lengths available

Four-step evaluation:

• ① Check certification: AEC-Q200 is the minimum requirement for automotive-grade resistors
• ② Check testing: Is 100% individual hi-pot testing performed? HXO tests every single resistor
• ③ Check specialization: Are they a specialist in ignition coil resistors or a general resistor factory?
• ④ Check service: Do they provide free samples, selection guidance, and failure analysis?

Recommended action: Request samples, test in your actual application (high temp, vibration, pulse), then decide. Don't base decisions on price alone.

Yes. HXO exports to 30+ countries worldwide, including USA, Germany, UK, France, Italy, Spain, Brazil, India, Indonesia, Thailand, Vietnam, and more. Contact us for shipping options to your specific location.